THUGS armed with a claw hammer and a knife robbed a man of his mobile phone in Dewsbury Moor on Monday.
The victim, 21, was walking on School Lane at around 11.30pm when the two thugs approached.
They demanded property and the man handed over his phone.
The first robber is described as white, in his late 20s to early 30s, about 6ft tall, of average build, with dark hair. He wore a dark tracksuit.
His accomplice is black, about the same age, about 5ft 10in and chubby, with short dark hair.
Det Con Richard Brooke, of the Kirklees Police robbery team, said: “These men have both been armed with weapons. While not physically harming the victim, they have put him in fear for his safety.
“We urge anyone who has witnessed this offence or who has information to come forward.”
Those who can help should call the robbery team on 101 or Crimestoppers in confidence on 0800 555 111.